html,
body {
    height: 100%;
    width: 100%;
}

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: "Roboto", "SF Pro SC", "SF Pro Display", "SF Pro Icons", "PingFang SC", BlinkMacSystemFont, -apple-system, "Segoe UI", "Microsoft Yahei", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif;
    font-weight: 400;
    margin: 0;
}

a {
    -webkit-transition: all 0.35s;
    -moz-transition: all 0.35s;
    transition: all 0.35s;
    color: #474157;
}

a:hover,
a:focus {
    color: #474157;
}

hr {
    max-width: 100px;
    margin: 25px auto 0;
    border-width: 1px;
    border-color: rgba(34, 34, 34, 0.1);
}

hr.light {
    border-color: white;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: 0;
    font-weight: 200;
    letter-spacing: 1px;
}

p {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 20px;
}

.container {
    max-width: 1220px;
    margin-left: auto;
    margin-right: auto;
}

#mainbody {
    padding-top: 200px;
    position: relative;
    width: 100%;
    min-height: auto;
    overflow-y: hidden;
    background: #f1f6fd;
    color: #474157;
    height: calc(100vh - 61px);
}

#mainbody h2 {
    position: relative;
    font-weight: 500;
    display: inline-block;
    font-size: 76px;
    margin-bottom: 0;
    text-align: left;
}

#mainbody h2:before {
    z-index: 0;
    position: absolute;
    right: 0;
    text-align: center;
    font-size: 60px;
    left: 0;
    background-color: #1e9fff;
    bottom: 5px;
    content: "";
    height: 20px;
    opacity: 1;
    top: auto;
}

#mainbody h2 span {
    position: relative;
    z-index: 1;
}

#mainbody h3 {
    font-size: 34px;
    margin-bottom: 0;
}

#mainbody p.desc {
    font-size: 18px;
    line-height: 1.8;
}
#mainbody a{
    display: inline-block;
    margin-top: 40px;
    border:1px solid #1e9fff;
    color: #1e9fff;
    padding: 8px 16px;
    border-radius: 32px;
    font-size: 20px;
    line-height: 30px;
    text-decoration: none;
}
#mainbody a span{
    margin-left: 10px;
    margin-right: 10px;
}
@media (max-height: 500px) {
    #mainbody {
        height: inherit;
    }
}

@media (min-width: 768px) {
    .navbar-default {
        background-color: transparent;
        border-color: transparent;
    }

    #mainbody .index-text {
        text-align: left;
    }
}

@media (max-width: 767px) {

    #mainbody>.container>.text-center {
        padding: 130px 0 0 0;
        height: calc(100vh - 261px);
    }

    #mainbody>.container>.text-center>h1 {
        font-size: 50px;
        margin-bottom: 20px;
    }
    
    /* 首页移动端优化 */
    #mainbody .container {
        padding: 0 20px;
    }
    
    #mainbody h2 {
        font-size: 32px;
        display: block;
        width: 100%;
    }
    
    #mainbody h2:before {
        font-size: 28px;
        height: 10px;
    }
    
    #mainbody h3 {
        font-size: 18px;
        margin-top: 15px;
    }
    
    #mainbody p.desc {
        font-size: 14px;
        margin-top: 15px;
        color: #666;
    }
    
    #mainbody a {
        width: 100%;
        max-width: 280px;
        margin: 25px auto;
        display: block;
        text-align: center;
        font-size: 16px;
        padding: 12px 24px;
    }
}

.footer {
    background-color: #222222;
    padding: 20px 0;
    color: rgba(255, 255, 255, 0.3);
    text-align: center;
}

.footer p {
    font-size: 14px;
    margin: 0;
}